Patents by Inventor Kaiwan Chear
Kaiwan Chear has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20250377269Abstract: This disclosure provides methods for producing a sample of subcellular organelles, particularly nuclei, from a tissue. In some embodiments, this disclosure provides a method of processing a tissue sample involves performing enzymatic/chemical disruption of tissue in a chamber to produce disrupted tissue comprising released cells and/or nuclei and debris; separating the released cells and/or nuclei from the debris therein; and moving the released cells and/or nuclei. In some instances, the method comprises mechanical disruption of the tissue sample.Type: ApplicationFiled: March 19, 2025Publication date: December 11, 2025Inventors: Stevan Bogdan JOVANOVICH, Frank ZAUGG, Kaiwan CHEAR, Roger McIntosh, Nathan PEREIRA
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Publication number: 20250171768Abstract: A cartridge for dissociating tissue, comprising: a processing chamber comprising a stator, a side wall, a top orifice, and a first processing chamber port positioned in the side wall; and a grinder assembly comprising a plunger comprising a rotor, a grinder assembly slidably positioned in the processing chamber through the top orifice; wherein: the stator comprises a plurality of teeth arranged in a spaced-apart array of rings; and the rotor comprises one or more central teeth and a plurality of teeth arranged in a spaced-apart array of rings, wherein one ring of teeth is positioned at or substantially at a circumference of the rotor; wherein the rings in the stator and the rings in the rotor are positioned such that when the rotor contacts the stator, rings of teeth in the stator mesh with the one or more central teeth and rings of teeth in the rotorType: ApplicationFiled: March 2, 2023Publication date: May 29, 2025Inventors: John BASHKIN, Stevan Bogdan JOVANOVICH, Danielle MEYER, Nathan PEREIRA, Kaiwan CHEAR, David EBERHART
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Publication number: 20250163493Abstract: An instrument includes a fluidic cartridge having a body comprising a malleable material and a layer comprising a deformable material bonded to a surface of the body that seals one or more fluidic channels that communicate with one or more valve bodies formed in a surface of the body. The valve can be closed by applying pressure to the deformable material sufficient to close off a fluidic channel in the body. A cartridge interface is configured to engage the cartridge.Type: ApplicationFiled: November 25, 2024Publication date: May 22, 2025Applicant: IntegenX Inc.Inventors: David Eberhart, William D. Nielsen, Helen Franklin, Stevan B. Jovanovich, Dennis Lehto, Kaiwan Chear, James Klevenberg, Chungsoo Charles Park, Corey M. Smith, Philip Justus Wunderle, David King
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Patent number: 12152272Abstract: An instrument includes a fluidic cartridge having a body comprising a malleable material and a layer comprising a deformable material bonded to a surface of the body that seals one or more fluidic channels that communicate with one or more valve bodies formed in a surface of the body. The valve can be closed by applying pressure to the deformable material sufficient to close off a fluidic channel in the body. A cartridge interface is configured to engage the cartridge.Type: GrantFiled: December 4, 2023Date of Patent: November 26, 2024Assignee: IntegenX Inc.Inventors: David Eberhart, William D. Nielsen, Helen Franklin, Stevan B. Jovanovich, Dennis Lehto, Kaiwan Chear, James Klevenberg, Chungsoo Charles Park, Corey M. Smith, Philip Justus Wunderle, David King
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Publication number: 20240344017Abstract: A system, methods, and apparatus are described to collect and prepare single cells, nuclei, subcellular components, and biomolecules from specimens including tissues and in some embodiments use the single cells to form organoids or microtissues. The system can perform enzymatic and/or physical disruption of the tissue to dissociate it into single-cells and then use a hanging droplet method to form organoids or microtissues.Type: ApplicationFiled: February 17, 2024Publication date: October 17, 2024Inventors: Stevan Bogdan Jovanovich, Kaiwan Chear, Bruce Leisz, David Eberhart, John Bashkin
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Publication number: 20240175075Abstract: An instrument includes a fluidic cartridge having a body comprising a malleable material and a layer comprising a deformable material bonded to a surface of the body that seals one or more fluidic channels that communicate with one or more valve bodies formed in a surface of the body. The valve can be closed by applying pressure to the deformable material sufficient to close off a fluidic channel in the body. A cartridge interface is configured to engage the cartridge.Type: ApplicationFiled: December 4, 2023Publication date: May 30, 2024Applicant: IntegenX Inc.Inventors: David Eberhart, William D. Nielsen, Helen Franklin, Stevan B. Jovanovich, Dennis Lehto, Kaiwan Chear, James Klevenberg, Chungsoo Charles Park, Corey M. Smith, Philip Justus Wunderle, David King
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Patent number: 11926815Abstract: A system, methods, and apparatus are described to collect and prepare single cells, nuclei, subcellular components, and biomolecules from specimens including tissues and in some embodiments use the single cells to form organoids or microtissues. The system can perform enzymatic and/or physical disruption of the tissue to dissociate it into single-cells and then use a hanging droplet method to form organoids or microtissues.Type: GrantFiled: March 9, 2023Date of Patent: March 12, 2024Assignee: S2 GENOMICS, INC.Inventors: Stevan Bogdan Jovanovich, Kaiwan Chear, Bruce Leisz, David Eberhart, John Bashkin
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Patent number: 11891650Abstract: Provided herein is a fluidic cartridge having a body comprising a malleable material and a layer comprising a deformable material bonded to a surface of the body that seals one or more fluidic channels that communicate with one or more valve bodies formed in a surface of the body. The valve can be closed by applying pressure to the deformable material sufficient to crush and close off a fluidic channel in the body. Also provided are a cartridge interface configured to engage the cartridge. Also provided is a system including a cartridge interface and methods of using the cartridge and system.Type: GrantFiled: February 22, 2021Date of Patent: February 6, 2024Assignee: INTEGENX, INC.Inventors: David Eberhart, William D. Nielsen, Helen Franklin, Stevan B. Jovanovich, Dennis Lehto, Kaiwan Chear, James Klevenberg, Chungsoo Charles Park, Corey M. Smith, Philip Justus Wunderle, David King
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Publication number: 20240027311Abstract: This disclosure provides methods for producing a sample of subcellular organelles, particularly nuclei, from a tissue. In some embodiments, this disclosure provides a method of processing a tissue sample involves performing enzymatic/chemical disruption of tissue in a chamber to produce disrupted tissue comprising released cells and/or nuclei and debris; separating the released cells and/or nuclei from the debris therein; and moving the released cells and/or nuclei. In some instances, the method comprises mechanical disruption of the tissue sample.Type: ApplicationFiled: August 1, 2023Publication date: January 25, 2024Inventors: Stevan Bogdan Jovanovich, Frank Zaugg, Kaiwan Chear, Roger McIntosh, Nathan Pereira
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Publication number: 20230407232Abstract: A system, methods, and apparatus are described to collect and prepare single cells, nuclei, subcellular components, and biomolecules from specimens including tissues and in some embodiments use the single cells to form organoids or microtissues. The system can perform enzymatic and/or physical disruption of the tissue to dissociate it into single-cells and then use a hanging droplet method to form organoids or microtissues.Type: ApplicationFiled: March 9, 2023Publication date: December 21, 2023Inventors: Stevan Bogdan Jovanovich, Kaiwan Chear, Bruce Leisz, David Eberhart, John Bashkin
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Patent number: 11719608Abstract: This disclosure provides methods for producing a sample of subcellular organelles, particularly nuclei, from a tissue. In some embodiments, this disclosure provides a method of processing a tissue sample involves performing enzymatic/chemical disruption of tissue in a chamber to produce disrupted tissue comprising released cells and/or nuclei and debris; separating the released cells and/or nuclei from the debris therein; and moving the released cells and/or nuclei. In some instances, the method comprises mechanical disruption of the tissue sample.Type: GrantFiled: January 23, 2022Date of Patent: August 8, 2023Assignee: S2 GENOMICS, INC.Inventors: Stevan Bogdan Jovanovich, Frank Zaugg, Kaiwan Chear, Roger McIntosh, Nathan Pereira
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Patent number: 11618876Abstract: A system, methods, and apparatus are described to collect and prepare single cells, nuclei, subcellular components, and biomolecules from specimens including tissues and in some embodiments use the single cells to form organoids or microtissues. The system can perform enzymatic and/or physical disruption of the tissue to dissociate it into single-cells and then use a hanging droplet method to form organoids or microtissues.Type: GrantFiled: June 1, 2019Date of Patent: April 4, 2023Assignee: S2 GENOMICS, INC.Inventors: Stevan Bogdan Jovanovich, Kaiwan Chear, Bruce Leisz, David Eberhart, John Bashkin
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Publication number: 20220290092Abstract: A system, methods, and apparatus are described to collect and prepare single cells, nuclei, subcellular components, and biomolecules from specimens including tissues and in some embodiments use the single cells to form organoids or microtissues. The system can perform enzymatic and/or physical disruption of the tissue to dissociate it into single-cells and then use a hanging droplet method to form organoids or microtissues.Type: ApplicationFiled: June 1, 2019Publication date: September 15, 2022Inventors: Stevan Bogdan Jovanovich, Kaiwan Chear, Bruce Leisz, David Eberhart, John Bashkin
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Patent number: 11441976Abstract: A system, methods, and apparatus are described to collect and prepare single cells, nuclei, subcellular components, and biomolecules from specimens including tissues. The system can perform enzymatic and/or physical disruption of the tissue to dissociate it into single-cells or nuclei in suspension or subcellular components including nucleic acids. In some embodiments, the titer of dissociated cells is monitored at intervals and the viability determined. In some embodiments, the processing is adjusted according to the measurements of the titer and viability. In some embodiments, the single-cells or nuclei in suspension are washed and resuspended in the buffer or media of choice. In some embodiments, the conditions are chosen to produce nuclei. In other embodiments, the single-cells or nuclei are purified by affinity paramagnetic bead processing. In some embodiments, matched bulk nucleic acid to the single-cells is produced.Type: GrantFiled: October 28, 2021Date of Patent: September 13, 2022Assignee: S2 GENOMICS, INC.Inventors: Stevan Bogdan Jovanovich, Frank Zaugg, Kaiwan Chear, Roger McIntosh, Nathan Pereira
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Publication number: 20220146382Abstract: This disclosure provides methods for producing a sample of subcellular organelles, particularly nuclei, from a tissue. In some embodiments, this disclosure provides a method of processing a tissue sample involves performing enzymatic/chemical disruption of tissue in a chamber to produce disrupted tissue comprising released cells and/or nuclei and debris; separating the released cells and/or nuclei from the debris therein; and moving the released cells and/or nuclei. In some instances, the method comprises mechanical disruption of the tissue sample.Type: ApplicationFiled: January 23, 2022Publication date: May 12, 2022Inventors: Stevan Bogdan Jovanovich, Frank Zaugg, Kaiwan Chear, Roger McIntosh, Nathan Pereira
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Publication number: 20220082479Abstract: A system, methods, and apparatus are described to collect and prepare single cells, nuclei, subcellular components, and biomolecules from specimens including tissues. The system can perform enzymatic and/or physical disruption of the tissue to dissociate it into single-cells or nuclei in suspension or subcellular components including nucleic acids. In some embodiments, the titer of dissociated cells is monitored at intervals and the viability determined. In some embodiments, the processing is adjusted according to the measurements of the titer and viability. In some embodiments, the single-cells or nuclei in suspension are washed and resuspended in the buffer or media of choice. In some embodiments, the conditions are chosen to produce nuclei. In other embodiments, the single-cells or nuclei are purified by affinity paramagnetic bead processing. In some embodiments, matched bulk nucleic acid to the single-cells is produced.Type: ApplicationFiled: October 28, 2021Publication date: March 17, 2022Inventors: Stevan Bogdan Jovanovich, Frank Zaugg, Kaiwan Chear, Roger McIntosh, Nathan Pereira
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Patent number: 11231347Abstract: A system, methods, and apparatus are described to collect and prepare single cells, nuclei, subcellular components, and biomolecules from specimens including tissues. The system can perform enzymatic and/or physical disruption of the tissue to dissociate it into single-cells or nuclei in suspension or subcellular components including nucleic acids. In some embodiments, the titer of dissociated cells is monitored at intervals and the viability determined. In some embodiments, the processing is adjusted according to the measurements of the titer and viability. In some embodiments, the single-cells or nuclei in suspension are washed and resuspended in the buffer or media of choice. In some embodiments, the conditions are chosen to produce nuclei. In other embodiments, the single-cells or nuclei are purified by affinity paramagnetic bead processing. In some embodiments, matched bulk nucleic acid to the single-cells is produced.Type: GrantFiled: November 29, 2017Date of Patent: January 25, 2022Assignee: S2 GENOMICS, INC.Inventors: Stevan Jovanovich, Frank Zaugg, Kaiwan Chear, Roger McIntosh, Nathan Pereira
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Publication number: 20210214673Abstract: A system, methods, and apparatus are described to collect and prepare single cells, nuclei, subcellular components, and biomolecules from specimens including tissues and in some embodiments use the single cells to form organoids or microtissues. The system can perform enzymatic and/or physical disruption of the tissue to dissociate it into single-cells and then use a hanging droplet method to form organoids or microtissues.Type: ApplicationFiled: June 1, 2019Publication date: July 15, 2021Inventors: Stevan Bogdan Jovanovich, Kaiwan Chear, Bruce Leisz, David Eberhart, John Bashkin
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Publication number: 20210180114Abstract: Provided herein is a fluidic cartridge having a body comprising a malleable material and a layer comprising a deformable material bonded to a surface of the body that seals one or more fluidic channels that communicate with one or more valve bodies formed in a surface of the body. The valve can be closed by applying pressure to the deformable material sufficient to crush and close off a fluidic channel in the body. Also provided are a cartridge interface configured to engage the cartridge. Also provided is a system including a cartridge interface and methods of using the cartridge and system.Type: ApplicationFiled: February 22, 2021Publication date: June 17, 2021Inventors: David Eberhart, William D. Nielsen, Helen Franklin, Stevan B. Jovanovich, Dennis Lehto, Kaiwan Chear, James Klevenberg, Chungsoo Charles Park, Corey M. Smith, Philip Justus Wunderle, David King
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Patent number: 10961561Abstract: Provided herein is a fluidic cartridge having a body comprising a malleable material and a layer comprising a deformable material bonded to a surface of the body that seals one or more fluidic channels that communicate with one or more valve bodies formed in a surface of the body. The valve can be closed by applying pressure to the deformable material sufficient to crush and close off a fluidic channel in the body. Also provided are a cartridge interface configured to engage the cartridge. Also provided is a system including a cartridge interface and methods of using the cartridge and system.Type: GrantFiled: January 17, 2019Date of Patent: March 30, 2021Assignee: IntegenX, Inc.Inventors: David Eberhart, William D. Nielsen, Helen Franklin, Stevan B. Jovanovich, Dennis Lehto, Kaiwan Chear, James Klevenberg, Chungsoo Charles Park, Corey M. Smith, Philip Justus Wunderle, David King